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No one may smoke within what distance of any vehicle containing explosives or flammable materials?

  1. 15 feet

  2. 25 feet

  3. 50 feet

  4. 100 feet

The correct answer is: 25 feet

The correct distance at which no one may smoke near a vehicle containing explosives or flammable materials is 25 feet. This regulation is in place to minimize the risk of ignition from open flames, which can easily ignite flammable vapors or materials. Maintaining a safe distance is critical for preventing accidents that could arise from combustible materials. The 25-foot guideline balances safety with practicality, ensuring that personnel can work and manage vehicles containing hazardous materials without undue risk of fire or explosions. It is essential for all drivers and handlers of hazardous materials to adhere strictly to these safety measures to protect themselves and others in the vicinity.